<!--  -->
<template>
  <el-container>
    <el-header>
      <div>
        <img src="../assets/logo.jpg" alt="" />
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="signOut"> 退出</el-button>
    </el-header>
    <el-container>
      <el-aside :width="iscollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggleCollapse">
          |||
        </div>
        <!-- 侧边栏菜单区域 -->
        <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#409eff"
          unique-opened
          :collapse="iscollapse"
          :collapse-transition="false"
          router
          :default-active="activePath"
        >
          <!-- 一级菜单 -->
          <el-submenu
            :index="item.id + ''"
            v-for="item in menuList"
            :key="item.id"
          >
            <!-- 一级菜单模板区域 -->
            <template slot="title">
              <!-- 图标 -->
              <i :class="iconsObject[item.id]"></i>
              <!-- 文本 -->
              <span>{{ item.authName }}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item
              :index="'/' + child.path"
              v-for="child in item.children"
              :key="child.id"
              @click="saveNavState('/' + child.path)"
            >
              <!-- 图标 -->
              <i class="el-icon-menu"></i>
              <!-- 文本 -->
              <span>{{ child.authName }}</span>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  components: {},
  data() {
    return {
      menuList: [],
      iconsObject: {
        "125": "iconfont icon-user",
        "103": "iconfont icon-tijikongjian",
        "101": "iconfont icon-shangpin",
        "102": "iconfont icon-danju",
        "145": "iconfont icon-baobiao",
      },
      //折叠面板是否折叠
      iscollapse: false,
      //未激活的链接地址
      activePath: "",
    };
  },
  computed: {},
  watch: {},
  created() {
    this.getMenuList();
    this.activePath = window.sessionStorage.getItem("activePath");
  },
  methods: {
    signOut() {
      window.sessionStorage.clear();
      this.$router.push("/login");
    },
    async getMenuList() {
      const res  = await this.$http.get("menus");
      if (res.meta.status !== 200)
        return this.$message.console.error(res.meta.msg);
      this.menuList = res.data;
    },
    //点击按钮切换菜单折叠与展开
    toggleCollapse() {
      this.iscollapse = !this.iscollapse;
    },
    //保存链接的激活状态
    saveNavState(activePath) {
      window.sessionStorage.setItem("activePath", activePath);
      this.activePath = activePath;

    },
  },

  mounted() {},
  updated() {},
};
</script>
<style lang="less" scoped>
.el-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 0;
  div {
    display: flex;
    align-items: center;
    img {
      width: 50px;
      height: 50px;
      border-radius: 50%;
    }
    span {
      color: #fff;
      font-size: 20px;
      margin-left: 10px;
    }
  }
}

.el-aside {
  background-color: #333744;
  .el-menu {
    border-right: none;
  }
}
.el-main {
  background-color: #eaedf1;
}
.iconfont {
  margin-right: 10px;
}
.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
